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Finding the Fourth Proportional to 87,163.72, 130,630.72 and 34,544.52

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Solution

The fourth proportional to 87,163.72, 130,630.72 and 34,544.52 is: 51,771.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,163.72 : 130,630.72 = 34,544.52 : x
  2. Step 2: Convert to fraction form
    87,163.72/130,630.72 = 34,544.52/x
  3. Step 3: Cross multiply
    87,163.72x = 130,630.72 × 34,544.52
  4. Step 4: Simplify right side
    87,163.72x = 4,512,575,519.65
  5. Step 5: Solve for x
    x = 4,512,575,519.65/87,163.72
  6. Step 6: Final answer
    x = 51,771.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.